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    Double-sided digital optical disk and method and apparatus for making
    1.
    发明授权
    Double-sided digital optical disk and method and apparatus for making 失效
    双面数字光盘及制作方法及装置

    公开(公告)号：US06962668B2

    公开(公告)日：2005-11-08

    申请号：US10290116

    申请日：2002-11-06

    申请人： Brian S. Medower ,  Michael F. Braitberg ,  David H. Davies

    发明人： Brian S. Medower ,  Michael F. Braitberg ,  David H. Davies

    IPC分类号： B29C45/26 ,  B29D11/00

    CPC分类号： B29C45/263 ,  B29C2045/2653

    摘要： A digital optical information disk contains content and/or non-content information on both sides of a single substrate produced by a process that embosses the surfaces of both sides substantially simultaneously. Simultaneous molding substantially eliminates the need for lamination when two or more data layers are to be provided. Preferably, the disk is relatively small, such as less than 50 mm in diameter and can replicate marks or features with a z-dimension magnitude of about 80 mm or more. The disk remains within a specified opto-mechanical range of an optical transducer and has little, if any, non-planarity (warp) or other distortion. The disk can be used for reading pre-written or mastered content, e.g., in a user's device, and/or can include information or features that permits or supports utility functions, allowing the user to record data thereon such as tracking, sector, location, timing, synchronization features or combinations thereof. Preferably, the disk is formed by an injection-only technique, although it is possible to provide suitable disks by an injection-compression technique as well.

    摘要翻译： 数字光学信息盘包含通过基本上同时压印两侧表面的工艺制造的单个基板的两侧上的内容和/或非内容信息。 当要提供两个或多个数据层时，同时模制基本上消除了对层压的需要。 优选地，盘相对较小，例如直径小于50mm，并且可以复制具有约80mm或更大的z尺寸大小的标记或特征。 磁盘保持在光学传感器的指定的光学机械范围内，并且具有很小的（如果有的话）非平面性（翘曲）或其它失真。 磁盘可用于读取预先写入或已掌握的内容，例如在用户设备中，和/或可以包括允许或支持效用功能的信息或特征，允许用户在其上记录数据，例如跟踪，扇区，位置 ，定时，同步特征或其组合。 优选地，盘通过注射技术形成，尽管也可以通过注射压缩技术提供合适的盘。

    Dual density disc with associated properties
    4.
    发明授权
    Dual density disc with associated properties 失效
    双密度盘具有相关属性

    公开(公告)号：US07554898B2

    公开(公告)日：2009-06-30

    申请号：US10085682

    申请日：2002-02-26

    申请人： David L. Blankenbeckler ,  Brian S. Medower ,  David H. Davies

    发明人： David L. Blankenbeckler ,  Brian S. Medower ,  David H. Davies

    IPC分类号： G11B7/24

    CPC分类号： G11B7/0079 ,  G11B7/007 ,  G11B7/24 ,  G11B7/26 ,  G11B7/263

    摘要： An optical storage disc has portions for storing pre-recorded or mastered information and portions for storing user writable information, where the mastered portion and the writable portions have different storage capacities or areal data densities. During manufacture, a substrate is formed with a sequence of bumps to represent the mastered information and a series of grooves and lands, where information can later be written on the lands. A phase-change material is deposited over the substrate, the phase-change material changing both physical structure and optical constants when written to, e.g., by a laser.

    摘要翻译： 光存储盘具有用于存储预先记录或已掌握的信息的部分，以及用于存储用户可写信息的部分，其中所述主控部分和可写部分具有不同的存储容量或面积数据密度。 在制造过程中，衬底形成有一系列凸块以表示所掌握的信息以及一系列凹槽和焊盘，其中信息可以随后被写在焊盘上。 相变材料沉积在衬底上，相变材料在例如通过激光器写入时改变物理结构和光学常数。

    Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresitive reproduce head
    7.
    发明授权
    Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresitive reproduce head 失效
    具有低磁导率保持器和自偏磁磁复制头的磁存储和再现系统

    公开(公告)号：US6043947A

    公开(公告)日：2000-03-28

    申请号：US113861

    申请日：1998-07-10

    申请人： Beverley R Gooch ,  Thomas M. Coughlin ,  David H. Davies

    发明人： Beverley R Gooch ,  Thomas M. Coughlin ,  David H. Davies

    IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/03 ,  G11B5/49 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/33 ,  G11B5/74

    CPC分类号： G11B5/66 ,  G11B5/00 ,  G11B5/012 ,  G11B2005/0034 ,  G11B5/03 ,  G11B5/4907

    摘要： A magnetic storage system includes a magnetic storage medium comprising a keeper layer of relatively low permeability soft magnetic material deposited upon a magnetic storage layer or between multiple magnetic storage layers. The low permeability keeper layer may be disposed either above or below the magnetic storage layer. In the unsaturated state, the keeper layer acts as a shunt path for flux emanating from recorded transitions on the magnetic storage layer, producing an image field of the recorded transitions in the keeper. This shunt path prevents signal flux emanating from the recorded transitions from reaching the head. To read data from a recorded transition on the magnetic storage layer; a bias current is applied to windings of the head, creating a bias flux which saturates a portion of the keeper layer. Once saturated, this portion of the keeper can no longer shunt flux emanating from the recorded transition, which is the region represented by the head reproduce transducer.

    摘要翻译： 磁存储系统包括磁存储介质，磁存储介质包括沉积在磁存储层上或多个磁存储层之间的相对低磁导率软磁材料的保持层。 低渗透性保持层可以设置在磁性存储层的上方或下方。 在不饱和状态下，保持层用作从存储层上的记录跃迁发出的磁通的分流路径，从而产生保持器中记录的转变的图像场。 该分流路径防止从记录的转变发出的信号通量到达头部。 从磁存储层上记录的转换中读取数据; 偏置电流施加到头部的绕组，产生使保持层的一部分饱和的偏置通量。 一旦饱和，保持器的该部分不再能够分离从由磁头再现传感器表示的区域的记录转变发出的磁通。

    Particulate magnetic medium utilizing keeper technology and methods of manufacture
    8.
    发明授权
    Particulate magnetic medium utilizing keeper technology and methods of manufacture 失效
    使用保持器技术的微粒磁性介质和制造方法

    公开(公告)号：US5843565A

    公开(公告)日：1998-12-01

    申请号：US742135

    申请日：1996-10-31

    申请人： David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

    发明人： David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

    IPC分类号： G11B5/667 ,  G11B5/712 ,  G11B5/716 ,  G11B5/66 ,  B32B7/02

    CPC分类号： G11B5/712 ,  G11B5/716 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/265 ,  Y10T428/2991

    摘要： The flexible, particulate magnetic storage medium includes a substrate and a magnetic storage layer of hard magnetic particles held within a binder. The flexible, particulate magnetic storage medium also includes a soft magnetic keeper layer. The soft magnetic keeper layer may be established by coating the individual hard magnetic particles of the magnetic storage layer with a layer of soft magnetic material to establish a "keeper layer" around each particle. A break layer of non-magnetic material may be provided between the hard and soft layers. The individual particles are coated by methods such as in situ precipitation. The soft magnetic layer may also be established by providing a separate layer of soft magnetic material within a binder of cross linkable resins. The resulting flexible, particulate magnetic storage medium is a laminate principally comprising a substrate, a first layer of hard magnetic particles within a binder, and a second layer of soft magnetic particles also within a binder. The laminate medium may be produced through extrusion of binder particle mixes through multi aperture slot die extensions. The flexible, particulate magnetic media may be used in tape or flexible disc formats.

    摘要翻译： 柔性颗粒磁性存储介质包括基材和保持在粘合剂内的硬磁性颗粒的磁存储层。 柔性颗粒磁存储介质还包括软磁保持层。 可以通过用磁性材料层涂覆磁存储层的各个硬磁性颗粒以在每个颗粒周围建立“保持层”来建立软磁性层。 可以在硬层和软层之间提供非磁性材料的断裂层。 通过诸如原位沉淀的方法涂覆各个颗粒。 也可以通过在可交联树脂的粘合剂内提供单独的软磁性材料层来建立软磁性层。 所得到的柔性颗粒状磁性存储介质是主要包括基底，粘合剂内的第一层硬磁性颗粒和粘结剂内的软磁性颗粒的第二层的层压体。 层压介质可以通过粘合剂颗粒混合物通过多孔隙槽模延伸而挤出来生产。 灵活的微粒磁性介质可以以磁带或软盘形式使用。

    Information display panel and method of fabrication
    10.
    发明授权
    Information display panel and method of fabrication 失效
    信息显示面板及制作方法

    公开(公告)号：US4156833A

    公开(公告)日：1979-05-29

    申请号：US800120

    申请日：1977-05-24

    申请人： Horng-Yhi Wey ,  David H. Davies

    发明人： Horng-Yhi Wey ,  David H. Davies

    IPC分类号： G02F1/1333 ,  G09F9/33 ,  H04N3/14 ,  H05B33/12 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00

    CPC分类号： G09F9/33 ,  H04N3/14 ,  H05B33/12 ,  G02F1/13336

    摘要： A modularized information display panel is formed of identical modules which have thin film transistor control elements disposed at display elements which are in an X-Y array upon the module substrate. The display medium driving electrode portion of the thin film circuit which is associated with each display element is non-symmetrically spaced relative to a unit display element, but the display element electrode is symmetrically positioned relative to the center of symmetry of the individual modules which make up the panel. In this way abutted display modules which form the display panel have display element arrays which are symmetrically aligned in the X-Y directions while the interconnecting X-Y buses of the abutted modules are offset.

    摘要翻译： 模块化信息显示面板由相同的模块形成，其具有设置在模块基板上处于X-Y阵列的显示元件处的薄膜晶体管控制元件。 与每个显示元件相关联的薄膜电路的显示介质驱动电极部分相对于单元显示元件不对称地间隔开，但是显示元件电极相对于各个模块的对称中心对称地定位 面板上。 以这种方式，形成显示面板的相邻的显示模块具有在X-Y方向上对称排列的显示元件阵列，同时抵靠的模块的互连X-Y总线被偏移。